"Haowm" is the sound that you make when you eat something incredibly delicious. Haowm makes you want to take a bigger bite, taste the food more, throw things in excitement, and yell loudly. Haowming is often accompanied by gargling delicious beverages. Haowm can be used as a noun, verb, adjective, adverb, you name it.
When you want to consume something in a manner that indicates pleasure, strangeness, or forgiveness. One can use this word at any time without context.